tankmates for gold sevrum

In my friend's 150, he has 3 oscars, tiger clown knife fish, and a silver arowana.

im pretty sure the severum and silver dollar will be ok. you could probably fit more.
 
I have kept all of the following with my gold severum in different size tanks.

Blue acaras
JD's
chocolate cichlid
rainbow cichlids
green severums
P.polleni
red tail sharks
hoplo catfish
festivums
sajicas
archocentrus spliurus
various barbs and plecos
Juvenile texas (under 7inches)

The only fish that I really had a problem with was my female synspilum when I moved her into the golds tank. The fought constantly for 5 days both refusing to back down, and both holding their own with no damage. I got fed up and moved the synspilum again.
 
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